Low Noise 90kw Dust Suction Blower Forced Draught Fan ID Fan

This article's table of contents introduction:

1. Deconstructed Specification
2. What you are likely asking for:
3. Recommended Configuration: Centrifugal ID Fan
4. Why this configuration for "Low Noise"?
5. Potential Applications (Where you would find this fan)
6. Competitor / Manufacturer Guidance
7. Critical Question for Selection

This request appears to be a technical specification for an industrial fan system, combining several specific requirements. Let's break down what each term means and what you are likely looking for.

Here is the translation of your request into a technical specification sheet.

Deconstructed Specification

Machine Type: Fan / Blower Primary Function: Dust Suction & Forced Draught (Air Movement) Power: 90 kW (This is a very large, high-power industrial fan, typically 3-phase 380V-690V) Key Requirement: Low Noise Configurations:

• Dust Suction Blower: Often an Induced Draught (ID) Fan used on the "dirty" side of a system (pulling air through dust collectors, baghouses, or cyclones).
• Forced Draught (FD) Fan: Used on the "clean" side (pushing air into a furnace, boiler, or combustion chamber).
• The ID Fan is the most common application for heavy dust suction.

What you are likely asking for:

You need a 90kW, industrial, backward-curved centrifugal fan (or high-efficiency airfoil fan) designed to move large volumes of air against high pressure (static pressure) while operating as quietly as possible, often used in dust collection systems or industrial boiler rooms.

Recommended Configuration: Centrifugal ID Fan

For a 90kW dust suction / ID fan with low noise, the best design is a Backward Inclined (BI) or Airfoil (AF) Centrifugal Fan.

Why this configuration for "Low Noise"?

• Backward Curved Blades: These are inherently quieter than radial (paddle wheel) or forward-curved fans. They have a non-overloading power characteristic and lower turbulence.
• Airfoil (AF) Design: The quietest possible design. The blades are hollow and shaped like an airplane wing. This is the most efficient and quietest but more expensive and less tolerant of heavy dust.
• Speed Reduction: To achieve "Low Noise," the fan must run at a lower RPM (e.g., 900–1200 RPM) and use a larger impeller diameter. This reduces tip speed, which is the primary source of noise.
• Sound Attenuation: A 90kW fan likely requires a silencer / sound attenuator on the inlet and discharge ducts.

Potential Applications (Where you would find this fan)

1. Cement Plant: Kiln ID fan or Raw Mill dust extraction.
2. Power Plant: Boiler ID fan for coal-fired boilers (pulling flue gas through the electrostatic precipitator or baghouse).
3. Steel Mill: Furnace fume extraction.
4. Mining: Underground ventilation or surface dust collection.
5. Woodworking / MDF Plants: Large chip extraction.

Competitor / Manufacturer Guidance

If you are looking to buy this, search for these brands or equivalent models:

Critical Question for Selection

What is the specific "Dust" type?

• Clean/Fine dust (e.g., cement, wood flour): A standard Backward Inclined fan is fine.
• Heavy/Sticky dust (e.g., textile lint, agricultural chaff): You need a Radial Tip or Paddle Wheel fan. However, these are VERY LOUD and cannot achieve "Low Noise" without massive silencers.
• High temperature (e.g., boiler flue gas at 150°C - 300°C): You need a fan with shaft cooling, a water-cooled bearing housing, and high-temperature steel (Corten).

If you can provide the Air Volume (m³/h or CFM) and Static Pressure (Pa or in.wg), I can calculate the specific fan size and noise level for you.